Rim-forming machine and method of forming rims



4 Sheets-Sheet l G. P. KLINE July 28, 1931.

RIM FORMING MACHINE AND METHOD OF FORMING RIMS Y Filed March 18, 1929 July 28, 1931. G, R KLINE 1,816,117

RIM FORMING MACHINE AND METHOD OF' FORMNG RIIS Filed March 18, 1929 4 Sheets-Sheet 2 BY F15-E July 28, 1931 GQRKLINE 1,816,117 RIM FORMING MACHINE AND-METHOD OF FORMING RIMS Filed March 18, 1929 4 Sheets-Sheet 3 July 28, 1931. G. P. KLINE 1,816,117

RIM FORMING MACHINE AND METHOD 0F FORMING' RIMS Filed March 18, 1929 4 Sheets-Sheet 4 65o. AfL/NE INVENToR.

ATTORNEY y rf. antun,

YPatented yJuly 28, 1931 I PATENT OFFICE OF MOLINE, ILLINOIS, ASSIGNOB T0 WILLIAMS, HITLEl & C0.,A OF MOIJI'NE, ILLINOIS, A CORPORATION OF ILLINOIS RIM-FORMING MACHINE vANI) METHOD OF FORMING .RIMS

Application med March 1s, 192.9. serial no. 347,800.

v".Ihis invention pertains to a machine for convertingfplain metallic band rings into yWheel.riu:1s,and among the kobjects thereof of. the character indicated in which the band be corrugated.y to reinforce the rim and thus;y reduce-'f Vvdistortion ofd the rim f during use;;,to providega machine in Whicha plurality of flanges may be simultaneously formed upon the rimby a series 'of simple,y

'substantially simultaneous operations; to

provide ina machine of the character indicated,y means for Aeasily adjusting the parte for thehandlingof-rims et different sizes; to rprovide novel means for adjusting the machine to diierent .sizes oi' work; and such further objects, advantages and capabilities asl will. hereafter appear'and as are inherent in the construction herein disclosed.` yMy invention further resides in the combination, construction and arrangement of parts illustrated in the accompanying drawings and, While I have showny therein what is now considered the preferred embodiment of this invention, Izdesire the same to be understood asillustrative onlyk andnot to be construed in .a limiting sense.

f In thefdraWin-gs annexed hereto andl forming apart hereof :--Fig. luis a front elevation yof a machine embodying my invention; Fig.

2 is afragmentary sideA View taken from the right sideo F ig. l ;`Fig. 'Qaiis a. lperspective of theiinished .product of the machine; Fig. 3 isan elevation of a portion of the construction shoWn in Fig. 1 With certain parts 'thereof shown in 'adiiferent operative po.- sition; Fig. 4l is afragmentary longitudinal sectionof a portionof the construction shown inzFig. ,1,tie same being taken substantially along the planeindicated by the line f-li, l; Fig.r 5 is a plan'view of a portion of the construction shown: in Fig. 1f; `(iis a cross-section of the structure shown in Fig. 4, the same being taken substantially along the' plane of the line 6`-6 inl said ligure; Fig. ,7, is a longitudinal .section of, a portion, of

the ymachine as illustrated in Figs. l andjgk ing amodifed form of construction; Fig. l2

is anend View` of the construction shown in Fig. 1l; Fig. 13 is a section substantially on the laneindicated by the line 13"-13, 2,' ig. 14 is a fragmentary .elevation of the structure shown in Fig. 2 but showing the entire Width of the machine gf and Figlis a; fragmentary detail showing the driving gears connecting the roll shafts. 4

Referring more in: detail to the annexed drawings, numeralv l denotes any suitable foundation upon which is mounted the 'base 2,k

of the machine, the same being secured on the foundation by any suitable means such as bolts 3. A superstructure or framework 4 is secured to the base 2 by suitable means such asbolts. 5. It will be understood that these .details are merely suggestive of a way in which the construction can be built. v

,Within the'upper portion of the framework is a cylinder 6 which has a pistonk mounted therein for reciprocating motion. This pis-2 tonY is connected in operative relation yto the plunger 7 which is connected to the slidable block 8 in which is mounted the shaft 9.r Male rolls 10 are carried by this shaft and cooperate with female rolls 11 in performing an operation upon the rim blank 12 as the same passes through the machine. The female rolls 11 are carried by the shaft 13, as shown most clearly in Fig. 4.

A shaft 14 connects theV two end members of the framework and has adjacent its bearings gear segments Which cooperate with racks upon the sides of bearingmembers 8. This results in the` twol ends of the shaft .9 moving' upwardly and downwardly at the is connected by any suitable means 18 with a source of fluid pressure. When pressure is exerted through the pipes 18 and 17, the piston in cylinder 6 is forced downwardly, thus causing the block 8 to move downwardly. With this travels the corresponding block at theopposite end ofthe machine. YY1When aV proper arrangement of valves is made pressure is applied through the pipe to force the piston upwardly in thecylinden, thus rraising the block V8 and with it the shaft-9 and the rolls 10. Vih'en the rolls 10 and 11 are' separated and certain other adjustments yare made, the rim which has been operated upon may be removed and a new blankinserted to be operated upon.y

Power from a source of power notshown in thepresent drawings istransmitted through a belt to avpulley 21 mountedV upon a shaft 22 carried by the base 2; VThe power is transmitted from'this shaft 22 to oneyor both of the shafts 9 and 13, thus causing them to rotate. Suitable connecting means'23 vsuch* as a screw prevents relative longitudinal motion of the sleeve 9a and the shaft 9.' The head or cap 25 has an outwardly extending flange 26 which is perforated for thev reception'of a plurality of longitudinally extending bolts 27. These bolts pass through the male grooving rollers and Vvarious other parts associated therewith as will be described hereinafter and holdthem againstrelative rotation with relation to each other yand to the shaft 9. Also, these bolts enable longitudinal thrust to be exerted against the parts assembled on the sleeve 9a as will be obvious from Fig. 7. the grooving rolls 10 and engaging thesleeve 9d prevent movement of the rolls with relation to the sleeve. However, these rolls can be'adjusted longitudinally of the sleeve withoutrelative rotationthereof by withdrawing` the set-screws 2'4 sufficiently to permit such motion] Relative rotation ofl these parts is prevented by the key 24d shown in Figs. 7 and 9. A; `key24e prevents relative rotation of the shaft 9V and thesleeve 9a.

A plate 28 is mounted upon the bolts 27 and is secured in place thereon, adjustably, by means ofthe nuts 29. Passing through a centrally arranged threaded opening in the plate'28 is a threaded shaft '30 which has a suitable hand-wheely 31 keyed thereto as shownl in Fig. 1. This shaft hasa'head at its opposite end which rests in a socket in the cap 25. A cover plate 33h`olds the head `cap 25.

' Set-screws 24 Vpassing through' 32y of this shaft in the socket and permits rotation thereof relative to the surrounding parts. It will be apparent from the foregoing that, by turning the hand-'wheel 31 in the right direction, pressure can be exerted upon the parts mounted upon the sleeve 9a t0 compress them tightly with relation to `each other or to cause separation thereof.

Besides the male rolls 10 there are mounted upon the sle'eve'9a the flanging rolls 34 and 35 and also the spacing rings 36. Mounted in a socket upon oneside of the cap 25` is a spring-pressed plunger 37 which cooperates with'a perforation 38 in the sleeve 9a to prevent the cap from being inadvertently removed from the end of the sleeve. Norinally, this plunger is pressed against the side wall of the sleeve 9a but, whenthe cap is drawn outwardly as if to remove itgfrom the sleeve, the plunger enters the 'perforation 38 and stops the cap before it is entirely removed from the end of the sleeve. A ring 39'is mounted upon the sleeve 9a and secured in place thereon byy means of a set-screw 40 as illustrated in Fig. 7. Thevpurpose of this ring is to serve as a stop to limit the movement of the flanging roller 34 away from the grooving` roller 10, just as the plunger 37 limits lthe movement ofthe roller 35 vandV The adjustment vand construction of the female rolls 11 and associated parts will now be described with particular lreference to Figs. 2, 3, 4, 6 and 8. Surrounding `the shaft 13 is a sleeve 13a which separates theshaft from the rolls or rings'11. Surrounding the sleeve 13a and locatedbetween the rolls or rings 11 is a spacing ring 41 which is perforated for the passage of pin 43 which ties the rings 11 and 41 together andprevents'them from having relative rotation with relation to each other.A A shaft 44vis mounted in a groove in the 'shaft 13 and a slot inthe sleeve 13a. At its outer end, this shaft 44 carries a handle 45 which is'rigidly connected thereto, the shaft being rotated when the handle is swung from one positionto another. On the inner end of the shaft 44 is a-oam or crank 46 which fits into a socket 47 formed in the ring-41. Corresponding sockets 48 are formed inrings 11. These are engaged by cam 46'in the saine manner asV socket 47 is engaged thereby,unless a lfiller ring 41 is used which is wider than the cam. vThe handle 45 has a spring-pressed plungerv 49 mounted therein, said plunger engaging sockets 50 and 51 in the end of shaft 13. 1/Vlien the plunger 49 engages tliejsocket 50, the ring 41 is at one limit of'its rotational movement and when the plunger 49 engages the socket 51, it is at the other limit of its rotation. l Y

Because the rings 11 and '41 are prevented l hand-le sturnedto cause the ,cam 46 to swing ite the 'left from the' positionfshown :in

' Fig. .6 yor vice fversa., A: wide `rlreyway 240 f iii-ngsfand 'the sleeve 13a-. The walls of the keyway serveas stOPS L10 limit the amount of `retention of the rollsk with relation to the shaft. A key 24o prevents relative rota-tion between shaft l?) and sleeve 13a.`

- Upon opposite sides of the `fra-me member 4y are' supporting 'brackets 55- through which entend threaded vmembers 56. TheseV extend' kthrough fand lare vertically adjustable `by means of the screw'ftlireaded sleeves r57, loosely mounted in the brackets 55.. Collars 57a: holdwthe sleeves 57 place the brackets-55.` An internally{screw-threaded sleeve- 58 *lits closely the member 56'and vis secured in place thereon vby a set-"screw 56a. rllhis sleeve y58v has a tangentially karranged wing 5.19 yextending laterally away from the machine; [This wing is `provided with a slot 60 for the reception lof a bolt 6lV by meansfof wh-iehthe position of plate 62 -may be adf justedabout pivot 63 relatively tothe wing approach or recede from' each other.

59.Ak A 'supporting arm6`4 is carried bythe plate 62 and it, yin turn, carries a latch mem; ber 65 whereby the arm f64may be locked to prevent it from'swinging around the member 56 in a substantially "horizontal plane.

rllhe guiding rollers 67 areL carried on suitable'pi-vots 68 which are secured to or'form a part of the blocks i69 sliding in the guideways in arms 64. A 1right and left-hand threaded screw 70 passes through theV blocks 69 Vand is provided with a crank 71 whereby it may be rota-tedto cause 'the blocks {g5} to uitable nuts 72 hold the shaft 70 against longi-y tudinal motion and` thus compel equal movewk ment of the two blocks 69 and the rollers 67 carried thereby. lllhenl -'a rimV blank has been placed .between 'the grooving rolls 10k and il, the two armss64 'are swung about their vertical pivots 56 until the rollers v67 carried thereby are arranged' upon opposite sides of the rim. It is ofcourse understood trat these rollers must ybe' separated far enough to permit this to be accomplished, before they arms can kbe ygotten' into position. After the arms rare in position and Vthe latches 65 have been engaged to holdwthe arms in such position, the cranks 71 andY 713 tu-rneduntil the rollers vtit closely against thegedges of the rim blank. These rollers will `then serve as guides to keep the blank properly positioned with .relation to 'the rolls l0 and 11. f K

- Theflange beveling rolls 75operate in the saineway as the rolls 67 but have an additional function yby reason of their tapered form. IThe purpose of thistaper willshortly beset forth. f j

lyarranged cams. lSince the collars are nonrotatably anoufnted upon the sleeve 13a and since rolls 11 are caused to rotate thereon by operation of the :handle 45, there will be relay tive rotation between vthe rings 11 and thecollazrs .7 7. f This'wirll either force the collars L77 farther apart or Vpermit them to come closer togetheL/depending upon which directionthe rolls ll ,have rotated. In Figs. l, 2 and 4 the parts are shown inthe same relative position, thatvfis, the cams 76 are in registry withl the spaces ybetween the cams on the collars 77, thus permitting :the collars to `be caused to approach each other. 'This position I call the k.vcollapsed` position. For the initial shaping of the rims,v these parts on they shaft 1-3 are in the expanded position. Rollers 78 are `carried by brackets 79 adj ustably mounted onan arm 80. These brackets are held in l adjusted position on the arm 8O by means k'of set-screws 8l. The brackets 79 `are set just far 'enough apart so that .the rollers 78'will limit the separating movement of the collars 77, 'so that there will be just space enough between their flanges yand kthe flanges yof the rollers 34 and 35 to permit the metal of the rim to pass between them.

Operation Assuming the blocks 8 to have been raised, carrying the bearings for shaft 9 upwardly, thus separatingthe grooving rolls, also that there is nowork between the grooving rolls, and also that the arms 64 'have been swung laterally until they are out of the way, a rim blank may be inserted between the grooving rolls and the arms 64 swung in until the pairs of rolls 67 and 7 5 are located upon opposite sides of the blank. The handles 71 and 73 are then turned until the rolls 67 and 7 5 engages the opposite edges of the blank. When this'has been done, the blank will be properly centered with relation to the grooving rolls.

The handle 45 will now be turned to the position shown in Fig. 3. if this has not already been done. and this will expand the rolls on shaft 13, 'bringing the flanges of collars 77 outwardly into engagement with the limiting rolls 78. With the parts in this position, there is just room between the flanges of collars y77 and the flanges of the Hanging rollers 34 and 35 to receive the metal of the rim ange as that is bent downwardly. By now increasing the pressure above the piston in cylinder 6, shaft 9 will be brought downwardly until the fianges of rollers 34 and 35 engage the metal of the rim blank, N ith power being applied to the shaft 22 to cause rotation of the shafts 9 and 13, and with more power being applied to force the Vif) j of bevel is formed Abetween the flangesand- Vile are now ready and 35.

1 to engageV the socket 50 in the end of shaft 13.

rllhis brings thefcams'76 into alignment with the depressions between the cams on the flanges of collars 77, thus permitting collapsing of the female rolls. Handle 73 is now vturned to bring thefiange' beveling rolls 75 into pressing engagement with thefianges of the rim. The machine is again started into operation and the pressure of the beveling rolls 7 5 is increased untilV the proper angle tread of the rim. Pressure is now turned on to cause raising of the shaft 9 and separation; of the grooving rolls.

are separated to permit the arms 64 to be swung laterally away from the work, and the latches are unlatched and the arms swung out of the way so that the work can he removed and a new blank inserted in its place. to repeatl the operation just described.

From the foregoing it will be observed that the flanging and ycorrugating occur in'overlapping'sequences,that is, the flanging is begun first, being followed by the corrugating which occurs simultaneously with the'inter-V mediate part of the operation'o'f flanging, and then the Hanging is completed after the corrugating is finished. 'f v V5/whenever a change is made from one width of stock to another or 'from one size of rim to another, itis necessary to change the adjustmentnfthe parts. For example, if it is desired to change from a G-inch tread to an 8-inclivetread, it will be necessary to'change the spacing between the flanges ofrolls 34 1f it should-be desired at the same time torchange the spacing between the corrugations .of the rims, then male rolls 10 which are thicker may .be substituted for f Y those whichhave been in use.v -On the other hand, if it is desiredto keep the corrugations the same distance apart, spacing collarsmay be placedbetween the rolls 10 and-34 on one side and 35 on the other. rlChese collars should be of the proper thickness to get the desired space Vbetween the flanges of 34 and 35. lf any change is made in the adjustment of the male lrolls 10 and associated parts, a corresponding change must be made in the adjustment of rolls 11 and theirl associatedparts. lf, foi1 example, the corrugaticns are to be made farther apart, a thicker collar 41 will Thejrolls 67 and 7 5v need'to be placed betweenthe rolls When this is done, it Will'be necessary toshift the brackets 79 far enough away to permit free movement of collars 77 when the female roll assembly is expanded.

If rims of larger or smaller diameter are to be shaped, it will be necessary to raise or lower the arms 64 carrying the rolls 67 and 7 5. This can be done by proper adjustment of the collars 57. Also, the plates 62 Lcan be adjusted on their pivots 63 so that the axes of rolls 67 and 75 will be radial with relation to the cylindrical surface of the rim; When these'adjustmentshave once been made, it is only necessary to change them when the size of the rims being formed is altered. Y

The construction shown in'V Figs. 11 and 12 is ai modification of that shown in Figs. 2

land 7, the purpose of lthis construction being to provide adjustable edge guides for the iange forming roll so that the two flanges on the two edges of the rim may always be made the` same width and so that the guides may Vbe adiusted to comnensatefor differences in width of rims. ln this construction, the rings '34 and 35 are replaced by 34a and 35a. vEach of these rings has upon its-inner face a groove for the reception of a iianging ring 34h and 355, respectively. On the Youter edges of Vthese rings 34a Vand 35a are formed screw l threads for the reception and adjustment of edge guide rings 340 and 350. These rings can be screwedon or o from the rings 34a and 35a as desired, the depth of the hollows therein being made asmuch or as little as desired. When Vthe.rings34c and 350 have been adjusted to the widthof the rim. blank 12 and havebeen so adjusted as to properly space this rim blank with relation tothe flange turning rings, the bolts 34d and 35d are put in place to hold the rings against rotation and also to assist in holding them to the rings 340; and 35a. .As indicated in this ligure, the sleeve 9a may be omitted, if desired. If this is omitted, either key 24d or 24e is also omitted.

Since the forming rolls on shafts 9 and 13 are of different diameters andl since the internal and external circumferences of the rim are unequal, it is obvious that the two shafts must operate at different speeds when forining a rim. Provision is made for this by having one of the shafts gear-driven and one friction-driven so that they can have relative motion. Means for accomplishing such Y operation is illustrated in Figs. 2, 13 and 14.

Referring now more particularly to Fig. 14, shaft 13, which extends all the way through the machine, is shown as provided with ya drive gear 95 which is loosely mounted on liu Y `other?fparts' on this shaft. The clutch jaws 'engaging -Withthe parts 98 of the clutch are always engagement therewith, Whether the parts 96 and 97 are in or outy of engagement. Therefore', When this member is shifted to the f right, asviewed insFig. 14, the parts Will be connected driving relation A collar 99 ysurrounds'theshaft and is heldin place by meansoff 'set-screws 100.y This serves as Vlimit-ing.nieanslt preventing longitudinal motion-:of a sleeve y101 along the shaft, in one 87a' ywhich is 'perforated for the reception f ofa pin 93;r Lufgs- 89 are arranged at opposite sides of the opening SSand have a bolt 90- passin-g. through openings* therein. A springy 91 surroundsthe bolt and the tension of this spring is adjustedk by means of the 25l nut-92jwhichl-is movable along the bolt 90. By this means,- thejtensionof the friction clutch may be adjusted 'As shown, this clutch-band. preferably provided with a 'lininglofv suitable material, such as brakebaedlkns" 'llhesleeve 101 is providedV .Witha flange' 102 at its end adjacent the ring 85 and has a projectioir at one side which is perforated for the lreceptionoithepin 93=fwhereby the iange' and the clutch band are connected together. A gear.10`3isintegralwithvor rigidly mounted upon the sleeye-1-O1andthereforeiturns With same when clutch` 91?, engages the' element 96. Asimilayr. gear 10 4`is rigidly mounted upon the'shaft vQ'and forms a partof a train of gearsb'y,.I1iT1eai-1 sof which. the said shaft is rotated.. yThe other twogears are-illustrated in Eig. 15fandf are designated respectively by the ntinrera-ls105l and 1061iy rIlhe shafts 107 andl1.08,-upon Whichthegearsl-O and 106 are mounted-are shown in Fig. 14. Suitable arms 109Pand-y 1-10fconnectffthese shafts and keep the gears properly connected in driving relation.

' lIt willT be understoodf fromi the foregoing fithat, vvllen'they formin-grolls are separated and abri-mf is ntbeiig formed, theI shafts 9 v and/131Willbe: `driven inv unison by reason of the*` connection heretofore referred'to.

Ohftlle other hand, the forming rolls-must be dniveniat a differentrate of speed,1.vvhen a rim is being formed' and the clutch; 87 providesfthe means whereby this-may be accomplished. k 'Phertvvo shafts 9` and 13 Will con'- tinueA to` operate at the same' speedI and the ringfi 85: on shaft. 13k will beV driven by the clntchS? yatthesamefsp'eed'until pressure beto? befappliedwuponfthe rim; When'- a difference* inf speed"` requiresr't' and pressure slippage of the band 87V With relation tothe `at all necessary. n p It is believed that the construction and'opring 85,' thus lpermitting the forming roll'sfto have the requisite relative speedmThe amount Vefforce required to cause this slippage can be adjusted by adjusting thenut 92 and therebyadjusting the tension of' spring 91 and clutch band 87. f l

2 `The supporting members 5G Which are shown 'as threaded and longitudinally adjust'- able'may have the screw threading omitted if y eration of my devicewill be clear from the foregoing description f taken in connection With the drawings annexed hereto. f it is of be departed from Without departing from the spirit of myinvention as set, forth in this specification and the appended' claims.V

- It is intended to claim both broadly and specifically the various novel subjects-mattei' disclosed herein, and I therefore desire that failure to' insert any claim commensurate With the scope `of my invention be not construed as an abandonment thereof. p

Having now ydescribed my invention, I claim: y c

1. A rim forming machine including a pair of adjacent shafts in substantially parallel arrangement, said shafts carrying cooperating rolls for forming corrugations in the rim blank and turning flanges along the edges thereof,fin combination with means for turn'- ing thel flanges inwardly beyond a plane perpendicular to the tread surface of the rim at its lateral edges. A 2. A rim forming machine including a pair of`adj'acent shafts in substantially parallel arrangement, said shafts carrying cooperating rolls for forming iianges upon a rim blank7 in conibina'tion with means for turning the'iianges'inwardly'beyond a plane perpendicular to the tread surfaceV of the rim at its lateral edges.

l3. A rim forming machine including aipair n ofadjacent shafts in substantially parallel arcourse understood that the specific A description of structure set forth above may rangement, said shafts carrying'cooperating t rolls' for forming corrugationsinkthe rim blank and turning flanges alongfthe edges thereof, said shafts beingcapable ofbeing separatedk or brought closer together in order to form` said Hanges and 'Corrugationsvthe parts being constructed and arranged to forni the flanges and' corrugations in overlapping sequences.

4'. A rim forming machine including a pair *l of adjacent shafts in substantially parallel arrangement, said shafts carrying cooperating' rolls for'forming corrugationsin therim blank` and" turning flanges along` the edges thereof, said rolls being capable" of adjust-v `ment to adapt them forthe shaping of rims of different widths.

e 5.' A rim forming machine including a pair of adjacent shafts in substantially parallel `arrangement, vsaid shaftscarrying cooperating rolls for vforming corrugations in the rim blank and turning flanges along the edges thereof, one 'of' said rolls being expansible and co-llapsible longitudinally of its shaft to make it'possible to give the flanges an inf clination'by bending them inwardly beyond planes at right angles to the tread of the rim, said planes contacting the rim at its eXtreme edges.

6. A rim shaping element fora machine of Ythe character described comprising arrotatable shaft, roller elements upon said shaft 1 and secured against rotation relatively thereroller elements.

` 8; vIn a machine of the character described, a framework, a pair of shafts rotatably* mounted therein and capable of being caused to relatively approach toward orre- "cede'from each other, shaping rolls on' said shafts adapted to cooperate with eachother in the shaping of rims, and two pairsfof guidingrolls carried by the framework, one on the front and one on the back of the machine, .in a position to engage opposite edges ofthe rim'blanks to position the same ,rela tivelyto the'forming rollsx' 9. Mechanism for use in a rim-forming machine, comprising a rotatable shaft, Ya

pair of roll elements non-rotatablyy connectedV 4to said shaft, a plurality of roll elements located between said first-named roll elements, and "means to oscillate the secondnamed roll elements about the shaft whereby longitudinal movement ofthe first-named Y roll elements'alongthe shaft maybe caused Orperm'itted.v y Y Y. Y l0. Mechanism for usein a rim forming machine, comprising a'rotatable shaft, a` pair of roll 'elements non-rotatably 'connected to said shaft, a plurality of roll elements located between said first named roll elements,

' cam means to oscillate the second named roll elements about the shaft wherebyl longitu-V dinal movement of the first named roll elementsfalong the shaftrmay be caused or permitted, andmeans to selectively adjust the .cams to one of a Vplurality of-possible positions.

l1. Mechanism for useiii a rim Y'forming machine, comprising a rotatable'shafnapair of roll elements non-rotatablyconnected to said shaft, a plurality of roll elements located between Vsaid first named'roll elements,

cam means to oscillate the "second named roll elements about the shaftV whereby longitudil f 12. In a machine of the vcharacter de- 4 scribed, a substantially vertically arranged frame element, a VsubstantiallyV horizontal supporting carried-by the frame element, said arm being mounted to swing ina substantially horizontal sector, guiding rolls adjustably carried by said arm, and means for adjusting the rolls longitudinallyy of the arm. f v

13. VIn a Vstructure ofv the 'character` described, a frame member, a supporting element attached to'sa'id frame` member, 1a bracket carried by said supporting element', aY support-ing arm carried by the bracket and pivoted on said bracketso as to be capable of swinging lin a substantially vertical plane, and guiding elements adjustably carried by said arm. Y Y

14. In a machineV vof the character de# scribed, a frame member, a-shaft extending therethrough and rotatable therein, a rim forming roll on said shaft, supporting arms supported by said frame memberand adjustable toward and away fromfthe axis of the rim, supporting and guiding memberscarried by and movable along' said arms, said members having axes extending substantially perpendicular to the length ofthe arms, and guiding rollersrrotatable on said aXes 'and serving to guide the work to b e operated upon, adjustment of the arms toward fand from the aXis'of the Vrim serving to compensate for the difference incurvature of rims having different diameters.VV "f1 Y Y Y Y 15. In 'a machine of the character described, a rotary shaft having a longitudinalgroove in the exterior surface thereof, roller elements motion of the roller elements, means to secure the handle in adjusted position, collars sur-v rounding said .rotary shaft and secured theref to in a way to permit longitudinalmotion of i the collars with relation Yto the shaft but to prevent rotary motion with relation thereto,

said first named means being'adaptedto cause rotary motion of the roller elements with relation to thejcollars.` .Y f'

for varying widths of rims, means to form .Y c

flanges along the edges of tne rim blank, and

kmeans to form corrugations in the tread of the rim substantially simultaneously with the Y yformation of the flanges.

17. A rim forming machine including means for forming flanges along the edges of a rim'blank and rolls serving to guide the rim with relation to the flangev forming means, said rolls having their rim contactingsurfaces arranged at an acute angleto the axis of the rim and hence serving' to turn the `flanges inwardly beyond planes extending through the edges of the rim.

18. Arim forming machine including a pair of adjacent shafts in substantially parallel arrangement, said shafts carrying cooperating rolls for forming flanges along the edges of a rim blank,fin combination with adjustable edge engaging guides to engage the edges of the rim blankand guide the same with relation to the flange forming mechanism, said edge guides being carried by one of the forming rolls.

19. A rim forming machine including a pair of adjacent shafts in substantially parallel arrangement, said shafts carrying cooperating rolls for forming fiangesalong the edges of a rim blank, in combination with adjustableedge engaging guides to engage the edges of the rim blank and guide the same with relation to th-e flange forming mechanism, the guides being carried by a flange forming roll and being separately adjustable to make it possible to shift the blank laterally with relation to the flange forming mechanism.'

' 20. .In a machine of l the lcharacter described, a rotary shaft, corrugating rolls secured to said shaft, Hanging elements adjacent the corrugating rolls and movable toward and from the same, a cap on the shaft f adapted to cooperate with ,othery parts to Y exert pressure upon the flanging elements to cause them to press'against the corrugat'ing rolls, stop means to limit the movement of the flanging elements away from the corrugating rolls, and means cooperating with the cap, the elements and the rolls to force them towards each other.

'21. In' a rim forming machine, cooperating shafts carryingrim forming rolls, and adjustable edge guides for rims on one of said ,shafts adjacent the ends of ka roll.

2.2. Ina rim forming machine, cooperating shafts carrying rim forming rolls, and adjustable edge guides for rims on one of said guides for rims on each end of one of said ,c

rolls and moving therewith during operation of the machine, said edge guides being independently adjustable with relation to said rolls.

25. In a rim forming machine, cooperating shafts carrying rim forming rolls, anging rolls for the rims, and edge guides for the rims on one of said rolls, said edge guides being adjustable with relation to the roll by which carried. y

26. In a rim forming machine, cooperating shafts carrying rim corrugating rolls, edge guides for the rims on one of said rolls, said edge guides being adjustable with relation to the roll by which carried.

|27. In a rim forming machine, cooperating shafts carrying rim forming and rim corrugating rolls, Hanging rolls for the rims, and edge guides for the rims on one of said rolls, said edge guides being adjustable with relation to the roll by which carried.

28. The method of forming a one-piece wheel rim or the like which consists in providing a continuous annular metallic blank, locking said blank against axial movement while subjecting the marginal edges thereof to a bending force to displace said marginal edges radially inward to produce inturned flanges and then displacing the region centrally of and spaced from the viianges radially to produce a corrugated surface.

29. The method of forming one-piece wheel rims or the like which consists in providing a continuous substantially circular metallic blank, rotating said blank while supporting the same against axial and bodily displacement, pressing inward themetal at the opposite edges of the rim while bodily rotating the same and supporting it against axial and bodily displacement to produce inturned flanges, and then displacing the metal of the blank by pressure exerted progressively and radially around the blank to produce corrugated surfaces.

30. The method of forming from sheet metal corrugated and fianged rims for wheels andthe like, comprising the steps of rotating a continuous cylindrical band of sheet metal between corrugated forming rolls while supporting the band against axial and bodily displacement, gradually and progressively forcing the edges of the band inwardly to form flanges, and gradually and progressively forming corrugations in the intermediate surface of the band by pressure exerted in- Y my name to this' side and outside thereof by `the forming rolrls at successive points cremnferentially, then rotating the corrugated band between forming rolls While supporting it against axial' and bodily displacemen.Y

Inwtness whereof, Iy hereunto subs-:Tibo speclcaon.

GEORGE P. KLINE. Y 

